With a Pinz (or any other european military vehicle) the top speed tends to be 90kph or less because that is the legal speed for trucks in europe and you are talking about a surplus military vehicle after all.If you want to go faster, buy a Super Duty instead.You won't be dissappointed and your significant other will be comfy.
John H.
1970 Mercedes Unimog
2004 F150 Heritage Supercab
1974 Holiday 17' Travel Trailer
It's not about the truck and it is not about the distance traveled. Get out there with whatever you have, meet people and see things. Push the envelope of your comfort zone and live.